Dell Inspiron 1521 Owner's Manual page 90

The operating system may be corrupted. Contact Dell (see
No timer tick interrupt —
A chip on the system board may be malfunctioning. Run the System Set tests in the Dell Diagnostics (see
Not enough memory or resources. Exit some programs and try again —
You have too many programs open. Close all windows and open the program that you want to use.
Operating system not found —
Reinstall the hard drive (see Hard
Optional ROM bad checksum —
The optional ROM has failed. Contact Dell (see
A required .DLL file was not found —
The program that you are trying to open is missing an essential file. Remove and then reinstall the program.
1. Click Start ® Control Panel.
2. Under Programs, click Uninstall a Program.
3. Select the program you want to remove.
4. Click Uninstall and follow the prompts on the screen.
5. See the program documentation for installation instructions.
Sector not found —
The operating system cannot locate a sector on the hard drive. You may have a defective sector or corrupted FAT on the hard drive. Run the Windows error-
checking utility to check the file structure on the hard drive. See Windows Help and Support for instructions (click Start
number of sectors are defective, back up the data (if possible), and then reformat the hard drive.
Seek error —
The operating system cannot find a specific track on the hard drive.
Shutdown failure —
A chip on the system board may be malfunctioning. Run the System Set tests in the Dell Diagnostics (see
Time-of-day clock lost power —
System configuration settings are corrupted. Connect your computer to an electrical outlet to charge the battery. If the problem persists, try to restore the
data by entering the system setup program, then immediately exit the program (see
(see Contacting Dell).
Time-of-day clock stopped —
The reserve battery that supports the system configuration settings may require recharging. Connect your computer to an electrical outlet to charge the
battery. If the problem persists, contact Dell (see
Time-of-day not set-please run the System Setup program —
The time or date stored in the system setup program does not match the system clock. Correct the settings for the Date and Time options (see
Contacting
Drive). If the problem persists, contact Dell (see
Contacting Dell).
Contacting Dell).
Dell).
Contacting Dell).
Using the System Setup
Dell Diagnostics).
® Help and Support). If a large
Dell Diagnostics).
Program). If the message reappears, contact Dell
Using the